Spring-oiler



G. A. TUTTLE.

SPRING OILER.

APPLICATION FILED MAY 21. 1919.

Patented Feb. 3,1920.

INVENTOR WITNESSES A TTOR/VEYS UNITED STATES PATENT OFFICE.

GEORGE A. TUTTLE, OF ANATONE, WASHINGTON.

SPRING-OILER.

Applicatipn filed May 21, 1919.

To all whom it may concern:

Be it known that I, GEORGE A. TUTTLE, a citizen of the United States, and a resident of Anatone, State of Washington, have invented a new and Improved S ring-Oiler, of which the following is a ful clear, and exact descrip-- tion.

This invention relates to an improvement in spring oilers, and aims to more particularly provide a device of this nature in which the individual leaves of a spring may be reached by oil distributed from a common inlet.

It is well known that springs at the present time are often broken, due to insuflicient lubrication of the individual leaves; and in view of the fact that the oiling of each individual leaf is difiicult, because of the inaccessible nature of the abuttin surfaces, inattention along this line is all the more noticeable on the part of garage mechanics.

In view of the above, I have devised a lubricating system for s rings which provides a new construction in connection with leaf springs, whereby oil will readily flow between the abuttin surfaces of the various leaves and be distrfiiuted over the entirety of such surfaces.

A further object of my invention is the provision of an oiler which provides for the initial introducing and distributing of the lubricating medium for the leaves; and, finally, I provide, in combination with such oiler, an arrangement whereb leakage is eliminated and the same is a ways maintained in applied position.

With these objects in view, reference is had to the accompanying sheet of drawings which embody one practical form of construction of my invention, and in which- Figure 1 is a side elevational View of an ordinary elliptical leaf spring with my oiler applied thereto;

Fig. 2 is an enlarged sectional side elevation of the oiler as shown in Fig. 1;

Fig. 3 is a bottom plan view taken along the line 3-3 of Fig. 2;

Fig. 4 is a sectional view along the line 4-4 of Fig. 1;

Fig. 5 is a sectional end elevation along line 5-5 of Fig. 2; and

Fig. 6 is a top plan view of the top leaf and of the elliptical spring as disclosed in Figs. 1 and 2.

Specification of Letters Patent.

in the county of Asotin and Patented Feb. 3, 1920.

Serial No. 298,607.

In these various views, the same reference numerals designate the same parts, and 1 refers to the body of an elliptical leaf spring, 2 to the top leaf thereof. Extending through all of these leaves is an oiler 3 located approximately intermediate the two shackles 4 securing the ends of the spring 1 in place.

The oiler 3 includes a body 5 formed with a head 6 at one of its ends and screw threaded, as indicated at 7, at its outer end. A screw-threaded opening 8 is formed in the head 6, and channels 9 extend from such opening parallel to the longitudinal axis of the oiler 3 and along the outer surface of the bod 5. An oil cup 10 is mounted in the screw-threaded opening 8 and communication between these two parts is afforded by a passage, such as 11.

The leaves of the body portion 1, as well as the to leaf 2 are formed with grooves 12 exten ing longitudinally of such leaves and terminating adjacent their end portions. It will now be noticed that the channels 9 afford communication between the oil cup 10 and the gropves 12 of the individual leaves, and it will consequentl be appreciated that oil in the cup 18 may flow through the assage 11 and be distributed between the eaves by means of the channels 9 which will conduct such oil into the grooves 12.

It will now be understood that if the body 5 should turn, the channels 9 would not aline with the gi poves 12, and consequently the apparatus wbuld not function properly. To ellminate this defect, I render the body of the bolt 5 ina able of turnill by pro viding, for instiii'nge, the underside of the head 6 with lugs 13, which engage notches 14 formed in the upper face of the leaf 2.

It will, of course, be appreciated that leakage of oil might result between the oiler 3 and the lowermost leaf of the body 1, and for this reason I have provided the body 5 of the oiler 3 with screw threads, as aforementioned and indicated by 7, upon which screw threadsis mounted a nut 15. Interposed between the nut and the underside of the lowermost leaf included in the body 1, is a felt washer 16 and an iron washer 17.

The nut 15 is split, as indicated at 18, and is provided with a screw 19 extending across said split portion, by means of which the threads of the nut 15 may be drawn closer tween the'outer atmosphere and the grooves 21. The lower end of the bolt 20 is formed with screw threads, such as indicated by the reference numeral 24, upon which is mounted a nut 25 split as at 26, and, in fact,-

corresponding in every particular to the nut 15 illustrated in Fig. 2, even so far as being provided with an iron washer 17 and a felt washer 16 is concerned. Similar in every respect to the conventional spring mounting, the end of one of the springs 1 extends around the bolt 20, and such bolt is carried by shackles 4, as indicated in Fig. 1.

In operation it will now be understood that upon the leaves 1 being assembled, so that the openings through their body portions are in alinement one with the other and form a continuous passage, the screw-threaded end of the bolt 5 is inserted through such passage and the felt washer 16, iron washer 17, and nut 15, applied to the screw-threaded end 7,

. care being taken that the lugs 13 enter the notches 14 so as to insure proper registering of the grooves 9, with respect to the grooves 12, and, in consequence, a good distribution of oil over the lower and upper surfaces of the leaf springs 1 and 2. After the nut has been applied in this manner, the screw 19 is tightened down and accidental removal of the nut is thereby prevented. Further, by the provision of the grooves 12 upon the underside of the leaves 1 and 2, a much better distribution of oil is effected, it being understood that capillary action will soon work the oil properly from the groove 12 between the contracting surfaces of the leaves 1 and 2.

It is to be appreciated that such modifications as I may desire tomake may be manufactured without departing from the scope of my invention.

7 Having now described my invention, what I desire to claim is:

'A spring oiler, including a leaf spring formed with an opening in its individual leaves, an oil "plug positioned within such opening, a nut engaging the lower end of the plug, and a felt and an iron washer in- 4 terposed between the upper face of such nut and the underside of the lowermost leaf.

' GEORGE A. TUTTLE. 

